Island



A. C. 'BARSTOW.

Cooking Stove.

Patented March 20 N PETERS. Pham-Lnhn m mr. Washiuglvn. D4 0.

UNITED STATES PATENT orrioa.

A. C. BARSTO\V, OF PROVIDENCE, RHODE ISLAND.

COOKING-STOVE.

Specification of Letters Patent No. 27,513, dated March 20, 1860.

To all whom it may concern:

Be 1t known that I, A. C. BARs'row, of Provldence, 1n the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Cookingtoves; and I do hereby declare that the following description, taken in connection with the acompanying drawings hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and principles of my improvements, by which my invention may be distinguished from all others of a similar class, together with such parts as I claim and desire to have secured to me by Letters Patent.

The figures of the acompanying plate of drawings represent my improvements.

Figure 1 is a plan or top view of my improved cooking stove. Fig. 2 is a central, longitudinal, vertical section of the same. Fig. 3 is a transverse section.

In the construction of cooking stoves in which it was desirable to have the oven in the rear of the fire and the botom of the oven about level with the botom of the fire, it has been common to construct a flue between the fire and the oven by the insertion of a flue plate, so that the heat should pass up to the boilers and then descend partly or wholly by this front flue thus created and pass under the oven. By this arrangement, both sides of this flue plate are exposed to intense heat and of course the plate is liable to so great expansion and contraction as to insure its speedy destruction as well as that of the plates contiguous. hen coal was the fuel used, if this flue plate was level with the top of the fire, the coal would fall over into and fill up the flue; or if, to prevent this, the center of the plate was carried up to the top of the stove, the great expansion to which it was liable, would cause it to lift and destroy the top, or if that held firm to warp and destroy itself.

The nature of my invention consists in forming the partition, which separates the fire place from the fines of a stove, of a double plate or chamber, provided at the bottom and top with apertures or openings, respectively for the admission to and evacuation from the stove, of external air whereby a continuous and rapid circulation'of fresh air is necessarily created and main tained through and by the heat of the said chamber. By this means the plate or chamber and the parts contiguous thereto, are effectually preserved from destruction or deterioration, and the use of a back plate extending to the top plate of the stove, without leaving a central space betweenthe said back and top plates, permitted, so that the exit fines of the fire chamber can be formed at the extreme ends of the same, thus admitting three apertures for boilers over the fire and conducting the heat to the apertures at the ends of the stove, in the same degree as to those in the center, before it can pass into the flues for heating the oven &c. By this arrangement in a stove of a double fire plate, extending from the bottom to the top plate, throughout its whole width, and having openings at the top and bottom, for the direct admission and evacuation of external air in combination with the flue passages near the top of the said plate at either end thereof, I am enabled to provide the top plate, in front of the partition chamber with three boiler apertures arranged in one row laterally. This in itself constitutes a novel and important feature, as in stoves of a dififerent construction, three boiler holes could not be used to advantage without a very long fire-chamber which necessitates the burning of a very large quantity of fuel.

Having thus stated in general terms the peculiarity of my invention and the advantageous results effected thereby, I will now proceed to describe in detail, the construction and operation of my improved stove.

a a in the drawings, represents the bottom framework of the stove, Z) Z) is the fire chamber and c the oven. The back plate, or partition which separates the fire place from the fines leading around the oven, is formed of two plates (Z cL-e e united together, but leaving a small space between them, constituting a chamber f f. Through this chamber 7' f fresh air is continually made to ascend and pass out, as shown by blue arrows in the drawings, by means of an aperture g at the bottom of the stove, through which cold air is admitted, and openings h h at the top of the fire chamber f f, through which the air which has become heated by passing upward through the said chamber, makes its escape, and the greater the tendency of the surface of the double plate (Z cl@ 6 to become heated, the more rapid will be the circulation of the fresh air through the chamber f f,

and consequently the plates (Z d@ 6 cannot become warped or destroyed. By this means of insuring the preserving of the back partition of the fire place, whatever may be the heat to which it is subjected, I am enabled to extend the said partition up to the top plate 1' 2' of the stove without leaving a space, V (as heretofore necessary, by the great contraction and expansion of the back plate of the fire pot), between the said partition and top plate. This space in ordinary stoves, forms the direct communication between the fireplace and the oven fines and consequently allows the heat to escape without first extending to the ends of the fire chamber and to the boiler apertures there situated.

It will be observed, by inspection of the drawings, that the back plate extends for the greater part of the length of the firechamber, entirely up to the top plate 2' i of the stove, the exit flues 70 72 leading to the oven fiues being situated at the extreme ends of the fire chamber, in order to conduct the heat to the end boiler apertures Z Z before it can escape, as hereinbefore stated. The heat &c. after passing through the flue spaces 7c 70 passes through the fines m m &c. around the oven 0 c, as shown by red arrows in the drawings, and is admitted to the smoke pipe or chimney at n n.

Having thus described my improvements, I shall state my claim as follows:

What I claim as my invention and desire to have secured to me by Letters Patent, is the double plate extending from the bottom to the top plate, and throughout the width of the stove, forming a partition chamber, so arranged, as to separate the fire chamber from the flues, when said plate or chamber is provided at the top, or thereabout, and bottom, or thereabout, with apertures or openings, respectively for the admission to and evacuation from said chamber of external air; whereby a continuous and rapid circulation of fresh air is necessarily created and maintained through, and by the heat of the chamber, for the purposes herein specified; in combination with the flue passages near the top and at either end of said partition chamber, by which three or more boiler apertures can be used on the front of a stove, and over a comparatively small fire and the heat be applied equally to each, and by which also, when the heat has passed from the firechamber, it is first applied to the ends of the oven where it is most needed.

A. C. BARSTOWV. Witnesses:

WILLIAM F. ELLIOT, GEORGE GILBERT RICHMOND. 

